Retainer



FIG. 1 is a front, bottom, and left side perspective view of anornamental design for a retainer, the rear, bottom, and right sideperspective view being identical thereto; and,

FIG. 2 is a front elevational view of the retainer of FIG. 1, the rearelevational view being identical thereto.

The break lines depict a symbolic break in a retainer. The appearance ofany portion of the article beyond the break line forms no part of theclaimed design. The dash-dash-dash broken lines are included for thepurpose of illustrating portions that form no part of the claimeddesign. Further, the dash-dot-dash broken lines depict boundary linesand form no part of the claimed design.

CLAIM The ornamental design for a retainer, as shown and described.